Recent satellite and in-situ measurements reveal no definitive warming trend in the tropical free troposphere over the past two decades. The low humidity in this region allows more infrared radiation to escape from the Earth, cooling the atmosphere. Current computer models inaccurately handle humidity processes in this region.
SourceNASA/Marshall Space Flight Center--Space Sciences Laboratory·JournalBulletin of the American Meteorological Society·DateJul 14, 1997
Researchers have successfully demonstrated intersubband stimulated emission in an actual device structure, showing the potential for a tunable, mid-infrared solid-state laser. The new design is simpler and more efficient than previous concepts, with the ability to be tuned to specific wavelengths.
SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateApr 3, 1997
Celestron NexStar 8SE Computerized Telescope
Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.
Purdue University scientists have developed a method to trap and study ions on surfaces, providing a new way to alter materials at the nanoscale level. The technique uses molecular ions that can be selected based on mass, allowing for reversible surface modification and preserving the ions.
Astronomers use BATSE to detect four rare cosmic gamma-ray bursts, sparking debate about their origin and distance. The events appeared in rapid succession over two days from the same general position in the sky.
SourceNASA/Marshall Space Flight Center News Center·DateDec 17, 1996
A multidisciplinary team is building an experimental facility to test the effects of combined ozone and carbon dioxide on forest stands. The project aims to understand how trees will respond to increased atmospheric carbon dioxide in conjunction with other pollutants, such as tropospheric ozone.
SourceMichigan Technological University·DateDec 3, 1996
Sandia scientists have improved portable computer display screens using phosphor luminescence, which can reduce power consumption and improve performance. The new technology can operate at low voltage and is expected to outperform liquid crystal displays in various applications.
Researchers at Columbia University's Lamont-Doherty Earth Observatory found that the Earth's inner core is rotating faster than the planet, completing its once-a-day rotation about two-thirds of a second faster than the entire Earth. The discovery was made by measuring changes in seismic wave speeds through the inner core.
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.
The NCAR research program is testing a new cloud-seeding technique using pyrotechnic flares to enhance rainfall in drought-stricken Coahuila, Mexico. The technique has shown promising results in South Africa and Arizona, but its effectiveness remains uncertain.
SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·DateJul 3, 1996